Fastening device for windows



J. BLEARS FASTENING DEVICE FOR WINDOWS.

Feb. 9, 1943.

Filed Jan. 3, 1941 175/172 B/ean's I Fizz-4 Patented Feb. 9, 1943 ATEN? 2,310,348 ras resine :onvroe FOR wnsnows John Blears, .lamestown, N. Y, assigner to Hopes Windows, Ina, Jamestown, N. Y., a corporation of New York 2 Claims.

This invention relates to improvements in a fastening device and more particularly to one for use in securing a casement window sash in closed. position.

In its present form the invention discloses a casement window fastener mounted on the free edge of a side hung sash. The fastener includes a member pivo-tally movable to engage a cam located on the easement frame for the purpose of drawing into and securing the sash in Weather sealing engagement with the frame.

Generally, devices of this class include an integral handle member and latch pivotally supported by a rivet or a screw that is in turn mounted on a plate carried by the sash frame. Despite the accuracy of manufacturing the parts or the care employed in assembling these devices, it has been found that in use the handle member works loose about its pivotal support and will not function to draw the sash. into weather sealing engagement with the frame. Furthermore, the handle member is never balanced about its pivotal support and, consequent 1y, when the sash has been moved into open position, the handle, if too freely rotatable, will swing downwardly into the position normally occupied when the sash is secured in closed position. Thus, the latch portion may be in a position to strike the outer face of the frame with possible damage and loosening of the device, if it is attempted to close the sash without consciously turning and holding the handle member in released position.

It is the purpose and one of the objects of the present invention to provide a casement window fastener device that will function in the intended manner and without attention over a protracted period of time.

Another object of the invention is to provide a fastening device that may, at the time of installation, be adjusted to a desired operating and latching pressure.

Another object of the invention is to provide a mounting that is attachable for use with both right and left hand fastening devices.

Another object of the invention lies in the provision of a fastening device of simple construction that may be easily manufactured and readily installed.

Other objects and advantages of the invention will be more fully understood from a consideration of the following specification, taken in conjunction with the accompanying drawing; and in which Figure 1 is a fragmentary front elevational view of a casement sash and frame and a fastening device embodying one form of the invention, the device being shown in latching position;

Figure 2 is a somewhat larger front elevational view of the structure of Figure 1 showing the fastening device in released position;

Figure 3 is an enlarged horizontal sectional view taken substantially on the line 3-3 of Figure 1, showing the relationship and details of certain of the parts; and

Figure 4 is an exploded view of the parts of the fastening device, together with a mounting bracket.

Reference is particularly had to the drawing wherein the numeral H! is employed to generally designate a casement Window embodying a side hung sash and to which one form of the invention is applied. The window comprises a frame ll of conventional 2 cross section and includes an inner flange l2. A cam plate I3 is secured, in any suitable manner, to the flange l2, being engage'able by a latch that constitutes a part of the fastening device. A sash M of conventional 2 cross section also includes an inner flange I3.

Permanently secured to the flange It, in any suitable manner, as by rivets or screws H, is a mounting bracket Hi. The bracket includes an offset portion l9 that abuts the flange I6. Suitable openings 23 in the portion l9 receive the rivets or screws H. The body 2| of the bracket, by reason of the offset portion I9, is spaced inwardly a slight distance of the sash frame and may be of any desired contour. Projecting from the inner vertical face of the portion 2| is a shaft 22. This shaft may be secured to or formed integral with the body portion 2 I In the present disclosure, an opening 23 is made in the portion 2| through which a small diametered portion 24 of the shaft projects. This end of the shaft is headed over to permanently fix it against rotation or removal with respect to the portion 2|.

The shaft 22, at its outer end, is drilled and tapped, as at 26. At diametrically opposite sides of the shaft it is cut away to produce shoulders 21. These shoulders create an elongated lug 28, in the center of which is the opening 26.

A member 29 is adapted to be mounted on the shaft 22 and comprises a handle 3|, body portion 32, and latch 33. The body portion is apertured, as at 34, to fit the shaft 22. On the rear face of the member 29, adjacent the jointure of the body portion 32 and handle 3|, i a pin 35. The width of the body portion is preferably 21. Thus, when the member 29 is mounted on the shaft, the outer face of the portion 32 extends slightly beyond the shoulders 2'! but not beyond the lug 28.

A washer 36 is provided, being formed with an aperture 31 substantially the contour of the lug 28. A lock washer 38 and screw 39 complete the structure.

Attention i now directed to the assembly and operation of the fastening device. The bracket l8 may first be attached to the sash frame H3 or fitted with the member 29 as found most suitable. If the member 29 is first mounted on the bracket, it is to be noted that the latch 33 is movable to clear the bracket openings and facilitate mounting the bracket on the sash (see Figure 2). The member 29 is placed on the shaft 22 and moved to abut the face of the portion 2! of the bracket. With the member 29 in this position the lug 28 project beyond the face of the body portion 32 of the member and may be fitted with washer 36. Lock washer 38 is then placed on the threaded end of the screw 39 which is threaded into the opening 26. Turning the screw 39 increases the pressure of lock washer 38 against washer 3G and this in turn increases the friction as between the body portion 32 of the member 29 and the bracket l8. It will be noted that the lock washer 38 does not contact the rotatable member 29 but rather the non-rotatable washer 36. Thus repeated rotation of the member 29 does not affect the position of either lock washer or screw and the desired operating friction of the member 29 is maintained, The pin 35, by its contact in either of the two rotated positions of the member 29 with one edge of the bracket, serves to limit rotation of the member, substantially as illustrated.

It is evident from the foregoing the device comprises relatively few parts that may be readily assembled without the aid of special tools or equipment, and, furthermore, that the handle will at all times be maintained under a constant frictional resistance to rotation, and, although applicant has shown only one form of a fastening device for casement windows, variations or modifications of the structure are contemplated insofar as they are within the spirit and scope of the invention as defined in the hereunto annexed claims.

Having thus set forth my invention what I claim as new and for which I desire protection by Letters Patent is:

1. In a casement window fastener, a support having a bearing member projecting from one face thereof, a rotatable handle having an aperture through which said bearing member projects, a screw engaged with a threaded opening in the end of said bearing member, resilient means carried by and effective upon rotation of said screw in one direction to move said handle into predetermined frictional contact with said support, and further means carried by the end of said bearing member and interposed between said resilient means and said handle, said further means and said bearing member including parts cooperating to secure said further means against rotation and render said handle ineffectual to alter the predetermined frictional contact thereof with said support during rotation.

2. In a casement window fastener, a support having a bearing member projecting from one face thereof, a handle having an aperture into which said bearing member projects, at least a part of the end of said bearing member extending beyond the outer face of said handle, a screw engaged with a threaded opening in the end of said bearing member, a washer adapted to interfit the extending part of said bearing member, means on said washer and said bearing member cooperating to secure said washer against rotation, said washer abutting the outer face of said handle, and resilient means carried by and effective upon rotation of said screw in one direction to engage said washer and move said handle into frictional contact with said support.

JOHN BLEARS. 

